1,720,959 research outputs found
MONITORING TOTAL DISSOLVED SOLID (TDS), KONDUKTIVITAS DAN pH PADA AIR LINDI DAN AIR SUMUR TPA PASURUHAN KABUPATEN MAGELANG
No full textPengolahan sampah dengan open dumping memiliki beberapa kelemahan diantaranya memerlukan lahan yang luas untuk menampung sampah. Selain itu, dampak negatif yang ditimbulkan diantaranya menimbulkan bau tidak sedap, mengurangi keindahan lingkungan. menjadi sarang dari vector penyakit, sumber pencemaran lingkungan dari air lindi yang dihasilkan. Lindi menjadi salah satu sumber pencemar dan mempunyai dampak serius bagi sumber air bersih. Penelitian ini bertujuan untuk menguji kualitas air lindi dan air sumur TPA Pasuruhan berdasarkan nilai total dissolved solid (TDS), konduktivitas dan pH. Sampel air lindi, air sumur pantau, dan air sumur produksi diambil dan dilakukan di TPA Pasuruhan Kab. Magelang dengan metode grab sampel. Sampel air lindi dan air sumur diukur TDS, Konduktivitas dan pH dibandingkan dengan baku mutu Peraturan Menteri Lingkungan Hidup dan Kehutanan Republik Indonesia Nomor P.59/Menlhk/Setjen/Kum.1/7/2016 dan air sumur dengan  menggunakan  baku mutu  Peraturan Menteri Kesehatan Republik Indonesia Nomor 32 Tahun 2017. Hasil penelitian menunjukkan bahwa TDS tertinggi pada TDS Inlet 7024 mg/L, TDS kolam tampung 7770 mg/L, TDS sumur pantau 3754 mg/L dan TDS sumur produksi 163 mg/L. Konduktivitas tertinggi pada konduktivitas inlet 7774 µs/cm , konduktivitas kolam tampung 7333 µs/cm, konduktivitas sumur pantau 3754 µs/cm dan konduktivitas sumur produksi 331 µs/cm. pH terendah pada pH inlet 3,9, pH kolam tampung 4,7, pH sumur pantau 4,7, pH sumur produksi 3,9. Parameter TDS dan konduktivitas untuk air lindi inlet, kolam tampung maupun sumur pantau melebihi baku mutu. pH untuk kolam tampung dan sumur produksi melampaui baku mutu.  Kata kunci: Konduktivitas,Lindi, Sampah, TD
ANALISIS KIMIA UDARA PT PAPERTECH INDONESIA UNIT II MAGELANG
No full textPencemaran udara yang berasal dari kegiatan industri pulp dan kertas dapat menyebabkan penurunan kualitas lingkungan dan selanjutnya dapat menjadikan kualitas hidup rendah dari masyarakat yang tinggal di sekitar wilayah industri. Zat Pencemar yang dihasilkan oleh industri dapat berupa gas, asap, dan debu. Penelitian ini bertujuan untuk memaparkan sumber emisi dan karakteristiknya di industri PT Papertech Indonesia Unit II Magelang. Lokasi pengambilan data penelitian dilakukan di PT Papertech Indonesia Unit II Magelang. Area pengambilan sampel penelitian berupa udara dan debu di area sekitar pos satpam (down wind), genset perkins, boiler 2, area produksi. Pengujian emisi dilakukan di PT Papertech Indonesia Unit II Magelang. Hasil penelitian ini menunjukkan bahwa kadar sulfur dioksida (SO2), karbon monoksida (CO), nitrogen dioksida (NO2) dan partikulat sudah memenuhi baku mutu sesuai Surat Keputusan Gubernur Jawa Tengah Nomor 8 Tahun 2001 untuk area down wind, Peraturan Menteri Lingkungan Hidup Nomor 7 Tahun 2007 untuk area boiler 2, Peraturan Menteri Lingkungan Hidup Nomor 13 Tahun 2009 untuk area Genset Perkins dan Peraturan Menteri Ketenagakerjaan Nomor 5 Tahun 2018 untuk area produksi. Potensi polutan sulfur dioksida (SO2) yang tinggi terdapat pada area down wind dan polutan partikulat yang tinggi pada area genset perkins, dan boiler 2.Pencemaran udara yang berasal dari kegiatan industri dapat menyebabkan penurunan kualitas lingkungan dan selanjutnya dapat menjadikan kualitas hidup rendah dari masyarakat yang tinggal di sekitar wilayah industri. Zat Pencemar yang dihasilkan oleh industry dapat berupa gas, asap, dan debu. Penelitian ini bertujuan untuk memaparkan sumber emisi dan karakteristiknya di industri PT Papertech Indonesia Unit II Magelang. Lokasi pengambilan data penelitian dilakukan di PT Papertech Indonesia Unit II Magelang. Area pengambilan sampel penelitian berupa udara dan debu di area sekitar pos satpam (down wind), genset perkins, boiler 2, area produksi. Pengujian emisi dilakukan di PT Papertech Indonesia Unit II Magelang. Hasil penelitian ini menunjukkan bahwa potensi polutan sulfur dioksida (SO2) tinggi terdapat pada area down wind. Potensi polutan partiklat tinggi terdapat di area genset perkins and boiler 2. Secara keseluruhan parameter kimia udara di semua area Papertech yang diteliti memenuhi standar baku mutu.
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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